In a medium bowl, whisk together the flour, baking soda, baking powder and salt. In a second medium-sized bowl, whisk together the walnut oil and sugar. Add the bananas, eggs, maple syrup, vanilla, maple extract and Crown Royal, and whisk again until smooth.

Add the dry ingredients to the wet, followed by the buttermilk, and mix until smooth. Stir in the walnuts and chocolate raisins, and evenly divide the batter among the prepared muffin moulds. Place in the preheated oven, and bake for 15 to 20 minutes.